{
  "manageEntity": {
    "action": "Save",
    "entityId": "1808875355",
    "entityType": "Track",
    "nonce": "0x01618df0659c9a8a5606c51a799e1e945ab5ad7dc47cea71a6f83c0f9cb67744",
    "signature": "0xd054220541e4b9b37fabf83f0df107ff9978fec93818d559e4d86c8862a38d6b559409d6ed74060214cbec5ad9945204cdab666ecbd3702c091cb3b95a5d63251b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}